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Message-ID: <20251202102208.80713-4-y-abhilashchandra@ti.com>
Date: Tue, 2 Dec 2025 15:52:07 +0530
From: Yemike Abhilash Chandra <y-abhilashchandra@...com>
To: <tomi.valkeinen@...asonboard.com>, <mchehab@...nel.org>,
<robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
<hverkuil@...all.nl>, <sakari.ailus@...ux.intel.com>,
<laurent.pinchart@...asonboard.com>
CC: <hansg@...nel.org>, <mehdi.djait@...ux.intel.com>, <ribalda@...omium.org>,
<git@...tzsch.eu>, <vladimir.zapolskiy@...aro.org>,
<benjamin.mugnier@...s.st.com>, <dongcheng.yan@...el.com>, <u-kumar1@...com>,
<jai.luthra@...ux.dev>, <linux-media@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<y-abhilashchandra@...com>
Subject: [PATCH V2 3/4] media: dt-bindings: ti,ds90ub960: Add support for DS90UB954-Q1
DS90UB954-Q1 is an FPDLink-III deserializer that is mostly register
compatible with DS90UB960-Q1. The main difference is that it supports
half of the RX and TX ports, i.e. 2x FPDLink RX ports and 1x CSI TX
port. Therefore, add support for DS90UB954 within the existing bindings.
Link: https://www.ti.com/lit/gpn/ds90ub954-q1
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@...com>
---
.../bindings/media/i2c/ti,ds90ub960.yaml | 300 +++++++++++++++---
1 file changed, 264 insertions(+), 36 deletions(-)
diff --git a/Documentation/devicetree/bindings/media/i2c/ti,ds90ub960.yaml b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub960.yaml
index 6a78288aebaa..1ef977c2e479 100644
--- a/Documentation/devicetree/bindings/media/i2c/ti,ds90ub960.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub960.yaml
@@ -13,12 +13,10 @@ description:
The TI DS90UB9XX devices are FPD-Link video deserializers with I2C and GPIO
forwarding.
-allOf:
- - $ref: /schemas/i2c/i2c-atr.yaml#
-
properties:
compatible:
enum:
+ - ti,ds90ub954-q1
- ti,ds90ub960-q1
- ti,ds90ub9702-q1
@@ -129,39 +127,6 @@ properties:
Ports represent FPD-Link inputs to the deserializer and CSI TX outputs from the deserializer.
Their number is model-dependent.
- properties:
- port@0:
- $ref: '#/$defs/FPDLink-input-port'
- description: FPD-Link input 0
-
- port@1:
- $ref: '#/$defs/FPDLink-input-port'
- description: FPD-Link input 1
-
- port@2:
- $ref: '#/$defs/FPDLink-input-port'
- description: FPD-Link input 2
-
- port@3:
- $ref: '#/$defs/FPDLink-input-port'
- description: FPD-Link input 3
-
- port@4:
- $ref: '#/$defs/CSI2-output-port'
- description: CSI-2 Output 0
-
- port@5:
- $ref: '#/$defs/CSI2-output-port'
- description: CSI-2 Output 1
-
- required:
- - port@0
- - port@1
- - port@2
- - port@3
- - port@4
- - port@5
-
required:
- compatible
- reg
@@ -204,9 +169,86 @@ $defs:
- data-lanes
- link-frequencies
+allOf:
+ - $ref: /schemas/i2c/i2c-atr.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,ds90ub960-q1
+ - ti,ds90ub9702-q1
+ then:
+ properties:
+ ports:
+ properties:
+ port@0:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 0
+
+ port@1:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 1
+
+ port@2:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 2
+
+ port@3:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 3
+
+ port@4:
+ $ref: '#/$defs/CSI2-output-port'
+ description: CSI-2 Output 0
+
+ port@5:
+ $ref: '#/$defs/CSI2-output-port'
+ description: CSI-2 Output 1
+
+ required:
+ - port@0
+ - port@1
+ - port@2
+ - port@3
+ - port@4
+ - port@5
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,ds90ub954-q1
+ then:
+ properties:
+ ports:
+ properties:
+ port@0:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 0
+
+ port@1:
+ $ref: '#/$defs/FPDLink-input-port'
+ description: FPD-Link input 1
+
+ port@2:
+ $ref: '#/$defs/CSI2-output-port'
+ description: CSI-2 Output 0
+
+ required:
+ - port@0
+ - port@1
+ - port@2
+
+ links:
+ properties:
+ link@2: false
+ link@3: false
+
unevaluatedProperties: false
examples:
+ # Example with ds90ub960 Deserializer
- |
#include <dt-bindings/gpio/gpio.h>
@@ -406,4 +448,190 @@ examples:
};
};
};
+
+ # Example with ds90ub954 Deserializer
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ deser@3d {
+ compatible = "ti,ds90ub954-q1";
+ reg = <0x3d>;
+
+ clock-names = "refclk";
+ clocks = <&fixed_clock>;
+
+ powerdown-gpios = <&pca9555 7 GPIO_ACTIVE_LOW>;
+
+ i2c-alias-pool = <0x4a 0x4b 0x4c>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Port 0, Camera 0 */
+ port@0 {
+ reg = <0>;
+
+ ub954_fpd3_1_in: endpoint {
+ remote-endpoint = <&ub953_2_out>;
+ };
+ };
+
+ /* Port 1, Camera 1 */
+ port@1 {
+ reg = <1>;
+
+ ub954_fpd3_2_in: endpoint {
+ remote-endpoint = <&ub913_3_out>;
+ hsync-active = <0>;
+ vsync-active = <1>;
+ };
+ };
+
+ /* Port 2, CSI-2 TX */
+ port@2 {
+ reg = <2>;
+ ds90ub954_0_csi_out: endpoint {
+ data-lanes = <1 2 3 4>;
+ link-frequencies = /bits/ 64 <800000000>;
+ remote-endpoint = <&csi2_phy0>;
+ };
+ };
+ };
+
+ links {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Link 0 has DS90UB953 serializer and IMX274 sensor */
+
+ link@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg = <0>;
+ i2c-alias = <0x44>;
+
+ ti,rx-mode = <3>;
+
+ serializer3: serializer@30 {
+ compatible = "ti,ds90ub953-q1";
+ reg = <0x30>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ #clock-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ ub953_2_in: endpoint {
+ data-lanes = <1 2 3 4>;
+ remote-endpoint = <&sensor_3_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ub953_2_out: endpoint {
+ remote-endpoint = <&ub954_fpd3_1_in>;
+ };
+ };
+ };
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@1a {
+ compatible = "sony,imx274";
+ reg = <0x1a>;
+
+ clocks = <&serializer>;
+ clock-names = "inck";
+
+ reset-gpios = <&serializer3 0 GPIO_ACTIVE_LOW>;
+
+ port {
+ sensor_3_out: endpoint {
+ remote-endpoint = <&ub953_2_in>;
+ };
+ };
+ };
+ };
+ };
+ }; /* End of link@0 */
+
+ /* Link 1 has DS90UB913 serializer and MT9V111 sensor */
+
+ link@1 {
+ reg = <1>;
+ i2c-alias = <0x45>;
+
+ ti,rx-mode = <0>;
+
+ serializer4: serializer {
+ compatible = "ti,ds90ub913a-q1";
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ clocks = <&clk_cam_48M>;
+ clock-names = "clkin";
+
+ #clock-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ ub913_3_in: endpoint {
+ remote-endpoint = <&sensor_4_out>;
+ pclk-sample = <1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ub913_3_out: endpoint {
+ remote-endpoint = <&ub954_fpd3_2_in>;
+ };
+ };
+ };
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@48 {
+ compatible = "aptina,mt9v111";
+ reg = <0x48>;
+
+ clocks = <&serializer4>;
+
+ port {
+ sensor_4_out: endpoint {
+ remote-endpoint = <&ub913_3_in>;
+ };
+ };
+ };
+ };
+ };
+ }; /* End of link@1 */
+ };
+ };
+ };
...
--
2.34.1
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